## Search

Now showing items 1-10 of 101

#### Semileptonic transition of P-wave bottomonium chi(b0)(1P) to B-c meson

(Springer, 2012-08-14)

Taking into account the two-gluon condensate contributions, the transition form factors enrolled to the low-energy effective Hamiltonian describing the semileptonic chi(b0) -> B(c)l (nu) over bar, (l = (e, mu, tau)) decay ...

#### More about the B and D mesons in nuclear matter

(Springer, 2014-08-16)

We calculate the shifts in decay constants of the pseudoscalar B and D mesons in nuclear medium in the frame work of QCD sum rules. We write those shifts in terms of the B-N and D-N scattering lengths and an extra ...

#### Strong ΛbNB and ΛcND vertices

(American Physical Society, 2014-12-04)

We investigate the strong vertices among the Lambda(b), nucleon, and B meson as well as the Lambda(c), nucleon, and D meson in QCD. In particular, we calculate the strong coupling constants g Lambda bNB and g Lambda cND ...

#### Semileptonic transition of tensor chi(c2)(1P) to D-S meson

(Hindawi Publishing Corporation, 2014)

Taking into account the two-gluon condensate corrections, the transition form factors of the semileptonic chi(c2) -> D-s(l) over bar nu(l - e, mu) decay channel are calculated via three-point QCD sum rules. These form ...

#### Strong coupling constants of bottom and charmed mesons with scalar, pseudoscalar, and axial vector kaons

(American Physical Society, 2011-06-02)

The strong coupling constants, gD(s)DK(0)*, gB(s)BK(0)*, gD(s)*DK, gB(s)*BK, gD(s)*DK1 and gB(s)*BK(1), where K(0)*, K and K(1) are scalar, pseudoscalar, and axial-vector kaon mesons, respectively, are calculated in the ...

#### Semileptonic transition of Sigma(b) to Sigma in light cone QCD sum rules

(American Physical Society, 2012-01-03)

We use distribution amplitudes of the light Sigma baryon and the most general form of the interpolating current for heavy Sigma(b) baryon to investigate the semileptonic Sigma(b) -> Sigma l(+)l(-) transition in light cone ...

#### Analysis of the strong D-2* (2460)(0) -> D+ pi(-) and D-s2*(2573)(+) -> D+ K-0 transitions via QCD sum rules

(Springer, 2014-10-21)

The strong D-2* (2460)(0) -> D+ pi(-) and D-s2* (2573)(+) -> D+ K-0 transitions are analyzed via three-point QCD sum rules. First we calculate the corresponding strong coupling constants g(D2)*D pi and g(Ds2)*DK. Then we ...

#### Thermal properties of the heavy axial vector quarkonia

(Institute of Atomic Physics, 2014)

Using the additional operators coming up at finite temperature, we calculate the masses and decay constants of the P wave heavy axial-vector chi(b1) and chi(c1) quarkonia in the framework of thermal QCD sum rules. In the ...

#### gD(s)*DK*(892) and gB(s)*BK*(892) coupling constants in QCD sum rules

(IOP Publishing, 2011-04)

The coupling constants gD*(s) DK*(892) and gB*sBK*(892) are calculated in the framework of three-point QCD sum rules. The correlation functions responsible for these coupling constants are evaluated considering contributions ...

#### Thermal QCD sum rules study of vector charmonium and bottomonium states

(Springer, 2011-09-23)

We calculate the masses and leptonic decay constants of the heavy vector quarkonia, J/psi and gamma mesons at finite temperature. In particular, considering the thermal spectral density as well as additional operators ...